Elastic Constant Determinations of SiC/NiP Composite Coating by Surface Acoustic Wave and Nano-indentation
スポンサーリンク
概要
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Elastic constant determinations of coatings deposited on a substrate are performed using a surface acoustic wave technique, and the ultrasonically determined elastic constants are compared with mechanically determined ones using a nano-indentation technique in order to examine the present ultrasonic technique for its validity. The experimental results for a NiP coating have shown that the Young’s moduli determined ultrasonically and mechanically coincide with each other within an error range of 2%. This demonstrates that the present ultrasonic technique has been successfully applied to the elastic constant determination of such coating. Based on this result, SiC/NiP composite coating (SiC particle reinforced NiP coating) of 10 $\mu$m thickness was examined. The result using the surface acoustic wave indicated a 32% increase in Young’s modulus due to the randomly dispersed SiC particles. The validity of this result is also discussed in comparison with mechanically and theoretically estimated results.
- 2001-05-15
著者
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TANAKA Kohichi
Department of Mechanical Engineering, Nagoya, University of Technology
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Ihara Ikuo
Department Of Endodontics Pulp And Periapical Biology Tokyo Dental College
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Sawa Takeshi
Department Of Anesthesiology And Critical Care Medicine School Of Medicine Tokyo Medical And Dental
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Sawa Takeshi
Department of Mechanical Engineering, Nagaoka, University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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Tanaka Kohichi
Department of Mechanical Engineering, Nagaoka, University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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